Section SPS 316.220 - Branch-circuit, feeder and service calculations(1) GENERAL. This is a department exception to the requirements in 2011 NEC 220.10: Circuit load calculations may use unit load values lower than those identified in NEC Table 220.12 for lighting loads calculated using the maximum electrical energy conservation values specified under ch. SPS 363 for public buildings and places of employment.(2) EXCEPTION. This is a department exception to the requirements in 2011 and 2017 NEC 220.40: Exception: Under the supervision of a Wisconsin professional engineer, architect or designer of electrical systems, the feeder or service size may be computed using diversity factors or historical data of a similar type of building, other than one- and 2-family dwelling units.Wis. Admin. Code Department of Safety and Professional Services SPS 316.220
Amended by, CR 08-047: cr. Register February 2009 No. 638, eff. 3-1-09; CR 13-042: r. and recr. (1) Register November 2013 No. 695, eff. 12-1-13; CR 16-093: am. (1), (2) Register June 2018 No. 750, eff. 8/1/2018.